Right having read about this topic numerous times on this board I reckon its time for some answers.
And the topic is, yes you’ve guessed it the SIP pipe!!
A lovely looking pipe, and lovely sounding pipe, but wheres the top end??
I purchased the following from SIP this year with the view to tuning my T5 into a rally going 70 mph crusing machine.
Mallossi 172cc kit
Mallossi reed valve kit
Cosa 21 tooth clutch
Dellorto fuel pump
SIP performance pipe
Not cheap I’m sure you’ll agree, but having read the advice in the SIP catalogue I was sure these items held the key to building a flying machine.
Now I had the engine casings milled to suit the reed valve kit, rebuilt the engine, ran it in as in the Mallossi kit instruction book.
Then this weekend I took it for a 100 mile round trip, now 1st,2nd & 3rd gear are fine but when in fourth gear it just won’t hold at a decent speed. Everytime theres a slight incline or head wind I have to knock it down into 3rd to pick up speed again.
Now what else can I do? I’ve brought the best kit, best reed valve kit & the best exhaust? Or so I thought, after following the advice in the SIP catalogue!!
Then I’ve read in another post on this site that the SIP performance pipe design has been changed! But in the catalogue it claims to have been tested and proven as the number one pipe! But on this message board the main topic seems to be its disappointing performance.
How about some advice SIP? Is there a secret to unlocking the pipes power?
I’m beginning to think I could have better performance with just the Mallossi kit and a sito plus at a fraction of the price?
Maybe your better using a UK dealer who you can phone for advice?
If anyone has any ideas to improving my performance using the kit I have please let me know, I’m thinking of using my old clutch and rebuilding it using the cosa plates to make a stronger standard clutch.
Sorry about the moaning, but there seems to be a lot of people on here having the same problems and SIP don’t seem to be giving any answers………